Knife-sharpener



2. T. BIAGKNIAN.

KNIFE SHABPENER. APPLICATION FILED IuLY I3. 19m.

1,307,953. I Patented 511119,24, 1919.

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` ple and durable in construction, reliable and eflicient in operation and one which can be ZACHARY T. IBLAGKMAN, OF NEW QRLEANS, LOUISIANA.

KNIFE-SHARPENER.

`Specification of Letters Patent. Patented June 24:, 1919,

Application led July 13, 1918. Serial N o. 244,742.

To all @hom t may concern.'

MAN, a citizen of Jthe United States, residing at New Orleans, in the county of Orleans and State of Louisiana, have invented new and useful Improvements in Knife-Sharpeners, of which the following is a specification.

This invention relates to new and useful improvements in knife Sharpeners and the principal object of the invention 1s to provide a Sharpener, the sharpening elements of which may be reversed or replaced by new ones when desired.

Another object of the invention is to form the device of two members hinged together and adapted to clamp the sharpening elements between them, with means for holding said members in clamping position.

Another object of the invention is to provide a device of this character which is simmanufactured and placed upon the market at a minimum cost.

The invention also consists in certain other features of construction and in the combination and arrangement ofthe several Fig. 3 is a cross section of line 3-3 of` Fig. l. p

Fig. 4f is a view of the device in partl opened position.

As shown in these views: the device consists of two members 1 and 2 of substantially rectangular shape and hinged together by the hinge 3. The said members may be made of any suitable material though I prefer to make them of wood. In their meeting faces are formed recesses 4 which receive the members or blocks and having their ends bent at right angles and extending toward each other. Recesses 5 are formed in the y bent parts at one end of the device. These plates form a chamber in which are located the sharpening elements 6 which may be of any suitable material though I show a pair of flat les having their ends engaging said recesses 5. The members o-r blocks are held in closed position by means of a bolt 7 passing through both blocks and receiving a winged nut 8 at its end. In this manner the twoiiles are held together but with suiiicient space between them to receive the cutting edge of a knife. By drawing the knife back and forth the same will be sharpened.

I form a recess 9 in the upper face of one block and secure therein a stone 10 so that the cutting edge of the knife may be finished ofi' on this stone.

It will `be seen that the files may be reversed so as to bring a new part of the eutting face thereof into position for acting on the knife when the old parts ofsaid files have become worn. When necessary the les may be replaced by new ones.

f It is thought from the foregoing description that the advantages: and novel features of my invention will be readily apparent.

I desire it to be understood that I may make such changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is:-

A device of the class described comprising a pair of blocks hinged together and having recesses at the upper parts of the meeting faces, blades in said recesses having their ends bent at right angles, said ends at one end of the block having recesses therein, a flat file carried by each blade, the small ends of the files engaging said recesses, and a bolt passingthrough the blocks for adjustably securing them together.

In testimony whereof I afx my signature.

ZACI-IARY "I, BLACKMAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

`metal plates 5 extending the full length of Be 1t known that I, ZAcHARY T. BLACK-` 

